Java基本資料轉換成Json代碼，java資料轉換json

Java基本資料轉換成Json代碼，java資料轉換json

    JSON是一種輕量級的資料交換格式，非常適合於伺服器與 JavaScript 的互動。是移動開發中資料用戶端和伺服器端資料互動的不二選擇;  尤其是現在HTML5的流行,更顯著使用Json 完成資料互動的重要性.      在這裡, 我將示範一下Java基本資料轉換為Json代碼

Json必需包

如果不想自己下載jar 可以使用這個demo

1.List集合轉換成json代碼

        List<Person> list = new ArrayList<Person>();        list.add(new Person(0,"nagi_ho", 20,"海澱"));        list.add(new Person(1, "eson_ho", 21,"朝陽"));         JSONArray jsonList = JSONArray.fromObject(list);         System.out.println("1.List集合轉換成json代碼====>" + jsonList.toString());

2.Map集合轉換成json代碼

         Map map = new HashMap();         map.put("name", "json");         map.put("bool", Boolean.TRUE);         map.put("int", new Integer(1));         map.put("arr", new String[] { "btbu", "b" });         map.put("func", "function(i){ return this.arr; }");         JSONObject jsonMap = JSONObject.fromObject(map);         System.out.println("2.Map集合轉換成json代碼====>"+jsonMap.toString());

3.Set集合轉換成json代碼

         Set<Person> set = new HashSet<Person>();         set.add(new Person(0, "nagi_ho", 20,"信管112"));         set.add(new Person(1, "eson_ho", 22,"電商112"));         JSONArray jsonArray4 = JSONArray.fromObject(set);         System.out.println("3.Set集合轉換成json代碼====>"  +jsonArray4.toString());

4.Bean轉換成json代碼

         JSONObject jsonObject = JSONObject.fromObject(new Person(1, "信管112", 22,"btbu"));         System.out.println("4.Bean轉換成json代碼====>"+jsonMap.toString());

5.數群組轉換成json代碼

         boolean[] boolArray = new boolean[] { true, false, true };         String[] stringArray = new String[] {"信管111","信管112", "電商111", "電商112"};         JSONArray boolArray1 = JSONArray.fromObject(boolArray);         JSONArray jsonArray2 = JSONArray.fromObject(stringArray);         System.out.println("5.數群組轉換成json代碼====>"+boolArray1.toString());         System.out.println("5.數群組轉換成json代碼====>"+jsonArray2.toString());

6.一般資料轉換成json代碼

         JSONArray jsonArray3 = JSONArray.fromObject("['json','is','easy']" );         System.out.println("6.一般資料轉換成json代碼====>"+jsonArray3.toString());

運行結果:

1.List集合轉換成json代碼====>[{"address":"海澱","age":20,"id":0,"name":"nagi_ho"},{"address":"朝陽","age":21,"id":1,"name":"eson_ho"}]2.Map集合轉換成json代碼====>{"arr":["btbu","b"],"int":1,"name":"json","func":function(i){ return this.arr; },"bool":true}3.Set集合轉換成json代碼====>[{"address":"電商112","age":22,"id":1,"name":"eson_ho"},{"address":"信管112","age":20,"id":0,"name":"nagi_ho"}]4.Bean轉換成json代碼====>{"arr":["btbu","b"],"int":1,"name":"json","func":function(i){ return this.arr; },"bool":true}5.數群組轉換成json代碼====>[true,false,true]5.數群組轉換成json代碼====>["信管111","信管112","電商111","電商112"]6.一般資料轉換成json代碼====>["json","is","easy"]

當然我相信大家對這個json 格式不滿意, 那麼我們使用json的格式化工具Hison( 點擊下載)

[    {        "address":"北京",        "age":20,        "id":0,        "name":"nagi"    },    {        "address":"北京",        "age":21,        "id":1,        "name":"nag1"    },    {        "address":"北京",        "age":22,        "id":2,        "name":"nag2"    },    {        "address":"北京",        "age":23,        "id":3,        "name":"nag3"    },    {        "address":"北京",        "age":24,        "id":4,        "name":"nag4"    }]

這樣是不是看起來很爽了, 試一試吧,

如果覺得對你有用 給個贊吧~

Demo完整源碼下載